Fourier domain OCT relies on the detection of the spectral interference pattern and can be performed either using spectrometer based detection (spectral/Fourier domain OCT) or using a swept laser source (swept source/Fourier domain OCT) [ 17– 17].
The Open-Source Sweep A week before the big game, team officials engineer a "chance encounter" between the opposing quarterback and the actor Jake Gyllenhaal.
Source: NCDS Sweep 8, BHPS W18, UKHLS W1.
Light from a swept source (SS, Axsun Technologies, sweep rate: 100 kHz, average sweep speed: 18 nm/µs) with a central wavelength of 1040 nm and a sweep range of 110 nm enters the input of a fiber based linear polarizer (LP).
But whatever its source, it swept Mark Jeftovic and his company, EasyDNS, into both sides of the storm over corporate support, or the lack thereof, for WikiLeaks.
In this study, we used a swept source OCT system with a swept source laser SSOCT-13100, Axsun Technologies Inc., Billerica, MA).
However, as the implementation of OCT systems and light sources, especially swept sources, becomes more and more challenging with increasing bandwidth, it is important to know a priori whether a broad spectrum can be used effectively.
Briefly, the system used in this study consisted of a 40 kHz wavelength swept source centered at 1320nm with a FWHM sweep range of 143 nm [ 19].
An arbitrary waveform generator is also required for triggering a fast frequency sweep source.
Swept source OCT (SS-OCT) uses tunable lasers to sweep the wavelength of the light to interrogate the tissue, thus allowing the reconstruction of a depth-resolved axial scan (A-scan or A-line) [ 4].
We also report on the successful implementation of this technique with two commercial swept source lasers operating at 840nm and 1040nm, with sweep rates of 8kHz and 100kHz respectively.
